Tides Today & Tomorrow in Coupeville, Whidbey Island, WA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Coupeville, Whidbey Island, WA.
Next low tide (tomorrow) : 1:14 am (5.9 ft)
Next high tide : in 5h 06m at 7:44 pm (11.5 ft)
Sunset today : 8:50 pm
Sunrise tomorrow : 5:44 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9447929
Common Questions About Tides

Coupeville, Whidbey Island, WA Tides - May 1974

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:5411.42:098.58:263.57:502.55:518:23Waxing Gibbous1Wed
2Thu2:3711.63:309.19:142.08:543.45:508:25Waxing Gibbous2Thu
3Fri3:1411.64:379.99:560.69:524.25:488:26Waxing Gibbous3Fri
4Sat3:4911.65:3410.610:34-0.510:464.95:468:28Full Moon4Sat
5Sun4:2211.56:2511.111:10-1.311:365.65:458:29Full Moon5Sun
6Mon4:5611.27:1111.511:46-1.85:438:30Full Moon6Mon
7Tue5:3110.87:5311.612:246.112:22-2.05:428:32Full Moon7Tue
8Wed6:0810.48:3411.61:126.512:59-1.85:408:33Waning Gibbous8Wed
9Thu6:489.99:1411.52:006.71:37-1.55:398:35Waning Gibbous9Thu
10Fri7:319.49:5611.32:506.82:18-0.95:378:36Waning Gibbous10Fri
11Sat8:198.810:3911.13:466.73:02-0.25:368:37Waning Gibbous11Sat
12Sun9:158.211:2410.94:496.53:480.75:348:39Third Quarter12Sun
13Mon10:207.65:576.04:381.65:338:40Third Quarter13Mon
14Tue12:0910.711:37 AM7.36:595.35:322.55:328:41Third Quarter14Tue
15Wed12:5210.71:027.37:474.36:313.55:308:43Third Quarter15Wed
16Thu1:3010.72:227.78:253.37:324.35:298:44Waning Crescent16Thu
17Fri2:0610.73:308.58:592.18:315.15:288:45Waning Crescent17Fri
18Sat2:3810.84:269.39:310.89:265.75:278:47Waning Crescent18Sat
19Sun3:1010.95:1510.210:05-0.410:176.25:268:48Waning Crescent19Sun
20Mon3:4311.06:0110.910:41-1.511:066.65:248:49New Moon20Mon
21Tue4:1811.16:4511.511:20-2.411:546.95:238:50New Moon21Tue
22Wed4:5711.17:3111.912:02-3.15:228:51New Moon22Wed
23Thu5:4011.08:1712.112:437.012:46-3.35:218:53Waxing Crescent23Thu
24Fri6:2810.79:0412.21:347.01:33-3.15:208:54Waxing Crescent24Fri
25Sat7:2310.29:5212.22:316.82:22-2.55:198:55Waxing Crescent25Sat
26Sun8:269.510:4112.23:346.33:14-1.55:188:56Waxing Crescent26Sun
27Mon9:398.711:2912.14:435.64:08-0.25:188:57First Quarter27Mon
28Tue11:048.15:544.55:071.45:178:58First Quarter28Tue
29Wed12:1612.012:437.87:003.26:112.95:168:59First Quarter29Wed
30Thu1:0211.92:238.27:581.87:204.35:159:00Waxing Gibbous30Thu
31Fri1:4511.73:499.18:470.58:325.45:149:01Waxing Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9447929)

Common Questions About Coupeville, Whidbey Island, WA Tides

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What time does the tide turn (slack tide) in Coupeville, Whidbey Island, WA today?

Slack tide in Coupeville, Whidbey Island, WA is approximately 10:29 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Coupeville, Whidbey Island, WA?

Coupeville, Whidbey Island, WA is currently in a spring phase. Tonight's moon is 99% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Coupeville, Whidbey Island, WA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Coupeville, Whidbey Island, WA?

Tide predictions for Coupeville, Whidbey Island, WA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Coupeville, Whidbey Island, WA?

Tide data for Coupeville, Whidbey Island, WA is sourced from NOAA Station #9447929. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9447929.

What is the moon phase in Coupeville, Whidbey Island, WA tonight?

Tonight the moon over Coupeville, Whidbey Island, WA is Full Moon (99% illuminated). This places Coupeville, Whidbey Island, WA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA